As for the casting technology of resin sand treatment production line, it is a big problem that affects the yield, casting quality and casting cost directly. Therefore, when we formulate the production process of resin sand treatment, we should mainly determine the following items:

1. Determine appropriate casting process parameters

2, determine the appropriate final strength in general, resin sand mixing, after about 24 hours of self-hardening, it can reach the highest strength that is the final strength. Due to the different production conditions and production scale of each enterprise, the time interval from molding to pouring may not exceed 24 hours, so the final strength should be determined according to the enterprise. 24 hours final strength standard can be adopted for enterprises with small scale and one furnace per several days. For enterprises whose curing time of the casting mold is less than 24 hours, the final strength standard shall be the strength reached before pouring. At the same time, two tendencies should be overcome in production: on the one hand, to ensure quality and blindly improve the strength, so that the casting cost increases, resulting in waste; On the other hand, the casting quality is greatly affected by raw materials and operators due to the unstable quality and wide fluctuation range caused by the reduction of strength in order to maintain the cost. Each enterprise shall determine the appropriate final strength according to its own situation, so as to maximize the saving of resin and curing agent and reduce the casting cost on the premise of ensuring the casting quality.

3, determine the appropriate molding process casting yield, directly affect the casting cost, the appropriate molding process can not only ensure the casting quality, but also can reduce the casting cost, reduce the casting rejection rate is one of the most obvious and direct measures to reduce the casting cost. In the determination of molding process, as far as possible to make special sand box, box wall to leave more air holes, the model to do solid samples, the use of template modeling, casting system using ceramic tube, the inner gate to take more and scattered, coating brush uniform, not leakage coating, more air riser, to ensure the smooth core exhaust.